Update wording (#17757)

Author: BrennanConroy

src/Shared/Http2cat/Http2CatHostedService.cs

@@ -111,7 +111,7 @@ await sslStream.AuthenticateAsClientAsync(new SslClientAuthenticationOptions
                 }
                 finally
                 {
-                    // Unwind Https for shutdown. This must happen before context goes ot of scope or else DisposeAsync will hang
+                    // Unwind Https for shutdown. This must happen before the context goes out of scope or else DisposeAsync will never complete
                     context.Transport = originalTransport;
 
                     if (sslState != null)

src/SignalR/README.md

@@ -1,7 +1,7 @@
 ASP.NET Core SignalR
 ====================
 
-ASP.NET Core SignalR is a new library for ASP.NET Core developers that makes it incredibly simple to add real-time web functionality to your applications. What is "real-time web" functionality? It's the ability to have your server-side code push content to the connected clients as it happens, in real-time.
+ASP.NET Core SignalR is a library for ASP.NET Core developers that makes it incredibly simple to add real-time web functionality to your applications. What is "real-time web" functionality? It's the ability to have your server-side code push content to the connected clients as it happens, in real-time.
 
 You can watch an introductory presentation here - [ASP.NET Core SignalR: Build 2018](https://www.youtube.com/watch?v=Lws0zOaseIM)